Anti-HIV AgentsHIV InfectionsIndinavirHIV-1Antiretroviral Therapy, Highly ActiveAnti-Retroviral AgentsReverse Transcriptase InhibitorsHIV Protease InhibitorsZidovudineDrug Resistance, ViralCD4 Lymphocyte CountViral LoadNelfinavirOrganophosphonatesHIVAdenineDidanosineAcquired Immunodeficiency SyndromeRitonavirNevirapineBenzoxazinesInfectious Disease Transmission, VerticalDrug Therapy, CombinationDrug InteractionsLopinavirHIV Integrase InhibitorsDideoxyadenosineDideoxynucleosidesLamivudineHIV Reverse TranscriptaseAntiviral AgentsRNA, ViralProtease InhibitorsTreatment OutcomeVirus ReplicationMedication AdherenceSouth AfricaAIDS-Related Opportunistic InfectionsStavudinePyridinesPatient ComplianceHIV-Associated Lipodystrophy SyndromeCohort StudiesHIV SeropositivityPregnancy Complications, InfectiousDrug Resistance, Multiple, ViralUgandaTreatment FailureViremiaImmune Reconstitution Inflammatory SyndromeCD4-Positive T-LymphocytesBotswanaLost to Follow-UpPyrimidinonesAIDS Dementia ComplexMalawiDrug MonitoringCoinfectionDrug Administration ScheduleCote d'IvoireAfrica South of the SaharaDirectly Observed TherapyHIV ProteaseProspective StudiesZambiaLymphoma, AIDS-RelatedLipodystrophyOxazinesRetrospective StudiesTime FactorsRisk FactorsSaquinavirAfrica, SouthernCross-Sectional StudiesDeveloping CountriesZimbabweHIV Wasting SyndromeCytomegalovirus RetinitisPregnancyTuberculosisFollow-Up StudiesPrevalenceAntitubercular AgentsPlasmaDisease ProgressionLesothopol Gene Products, Human Immunodeficiency VirusGenotypeLongitudinal StudiesWithholding TreatmentPyrrolidinonesHIV Fusion InhibitorsTreatment RefusalCD4-CD8 RatioIncidenceThailandHIV Long-Term SurvivorsCameroonKenyaAIDS-Associated Nephropathy